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Sodium and sodium iodide can both conduct electricity when molten, but only sodium can conduct electricity when solid. Explain this difference in conductivity in terms of the structures of sodium and sodium iodide.

When approaching a question like this, it’s important to identify the two compounds that we are dealing with first. Sodium is an alkali metal, and therefore the metallic structure that it forms comes from me...
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Answered by Karol B. • Chemistry tutor
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What is a mole and why is it useful?

The number of moles is related to the amount of a substance we have. If we were to use the number of particles, the numbers would be huge and impractical to use. So, Avagadro's number provides us a link with...
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Answered by Michael L. • Chemistry tutor
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What is ionic bonding and covalent bonding?

Bonding in chemistry involves the transfer or sharing of electrons. In the case of ionic bonding, one or more electrons are transfered from one atom to another leading to charged fragments, one that is posit...
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Answered by Kasra A. • Chemistry tutor
3981 Views

What affects the rate of reaction?

Let’s start be thinking what exactly is a reaction. It takes place as an interaction between two or more particles. For that to happen, they must get close. Really close. And fast. Fast because otherwise the...
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Explain why sodium is more reactive than Lithium? (4 marks)

Na has more electron shells/ energy levels than Li. This means that Na has a greater atomic radius than Li. Therefore, the outer shell electron in Na experiences a weaker nuclear attraction than in Li. Less ...
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Answered by Haider M. • Chemistry tutor
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